The star Instagrammed an adorable shot of herself wearing them with, of course, Butters, and the caption: “Custom puppy PJ game strong.” We definitely approve of this way of immortalizing the cute pup, whom she got a year ago as her Prismatic World Tour mascot. Perry’s photo also shows that her Kris Jenner–inspired haircut from last week was, in fact, an April Fools' ruse.